You might think it is easy to throw a ball straight up into the air. Actually, it’s
quite difficult to do this, more likely the ball moves a bit horizontally as well. To
describe this we need to talk about motion in 2 dimensions. Here is a simple
example: Imagine that a ball is tossed across the room along an arc. Neglecting
air resistance, where along the arc is the speed of the ball
a minimum? ________________
a maximum? ________________
Lab rooms usually have a level surface. Is that relevant for your answer? What –
if anything – would change if the room slopes downward at the far end?
Where along the path of the ball does the acceleration change? What is the
acceleration of the ball 0.78 seconds before it hits the ground?